<!DOCTYPE html>
<html>
<head>
<title>产品月销量</title>
<style>
  table {
    width: 50%;
    border-collapse: collapse;
    margin: 20px auto;
    border: 2px solid #ff69b4; /* Pink border */
  }
  th, td {
    border: 1px solid #ff69b4; /* Pink border */
    padding: 8px;
    text-align: center;
  }
  th {
    background-color: #f0f0f0;
    font-weight: bold;
  }
  tr:last-child {
    background-color: #add8e6; /* Light blue for total row */
    font-weight: bold;
  }
</style>
</head>
<body>

<h1>产品月销量</h1>

<table>
  <thead>
    <tr>
      <th>ID</th>
      <th>产品名称</th>
      <th>销量</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>2021090901</td>
      <td>马克杯</td>
      <td>5000</td>
    </tr>
    <tr>
      <td>2021090901</td>
      <td>啤酒杯</td>
      <td>5200</td>
    </tr>
    <tr>
      <td>2021090901</td>
      <td>搪瓷杯</td>
      <td>3500</td>
    </tr>
    <tr>
      <td colspan="2">合计</td>
      <td>13700</td>
    </tr>
  </tbody>
</table>

</body>
</html>